David Halliday
Hi John, Vegetation growing at height can be a right nuisance. It depends sometimes the roots can attach themselves into the chimney wall itself therefore a scaffold would be a sensible option.If they are just small weeds then they could be removed by roofers. John have you considered a cherry picker fast and efficient and a good bit more cost effective around about £ 300.00 if the access is okay. You planted the seed and I flourished the answer sorry john. Good luck with your project Dave
